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WO2001021455A1 - Bobine pour dispositif de rappel de ceinture de sécurité - Google Patents

Bobine pour dispositif de rappel de ceinture de sécurité Download PDF

Info

Publication number
WO2001021455A1
WO2001021455A1 PCT/US2000/016779 US0016779W WO0121455A1 WO 2001021455 A1 WO2001021455 A1 WO 2001021455A1 US 0016779 W US0016779 W US 0016779W WO 0121455 A1 WO0121455 A1 WO 0121455A1
Authority
WO
WIPO (PCT)
Prior art keywords
spool
seat belt
belt retractor
path
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2000/016779
Other languages
English (en)
Inventor
Alan Smithson
David Blackadder
Joseph Harte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Breed Automotive Technology Inc
Original Assignee
Breed Automotive Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Breed Automotive Technology Inc filed Critical Breed Automotive Technology Inc
Priority to DE10084688T priority Critical patent/DE10084688T1/de
Publication of WO2001021455A1 publication Critical patent/WO2001021455A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/341—Belt retractors, e.g. reels comprising energy-absorbing means
    • B60R22/3413—Belt retractors, e.g. reels comprising energy-absorbing means operating between belt reel and retractor frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
    • B60R2022/286—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using deformation of material
    • B60R2022/287—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using deformation of material of torsion rods or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R2022/3427—Seat belt connection on reels

Definitions

  • the present invention relates to spool for a seat belt retractor.
  • a seat belt safety restraint generally comprises belt webbing wound on a spool that is mounted for rotation about its longitudinal axis to wind in or pay out webbing.
  • the spool is biased in a winding-in direction by a spiral spring.
  • a sensor detects a crash, for example by detecting acceleration or deceleration over a predetermined level . The sensor then activates a locking mechanism to lock the spool against rotation and prevent further pay out of webbing thus restraining the occupant against forward motion.
  • the belt webbing is usually threaded onto the spool through a slot in its core.
  • a strong steel webbing pin is sewn into the end of the webbing to prevent the end pulling through the slot .
  • One way to spreading the load exerted by the webbing is to use two slots in the spool.
  • the webbing is passed in one direction through a first slot, and then back, in the opposite direction through the other generally parallel slot. In this way the webbing imposed forces are spread over a greater area of the spool and the spool can withstand higher tensile loads .
  • the present invention provides an improved retractor spool arrangement with faster assembly times .
  • Fig. 1 is a cross-sectional view of a spool constructed according to one embodiment of the first aspect of the invention.
  • Fig. 2 is a perspective view of the spool of Fig. 1.
  • Fig. 3 is a cross-sectional view of a spool constructed according to a second embodiment of the first aspect of the invention.
  • Fig. 4 is a perspective view of the spool of Fig. 3.
  • Fig. 5 is a perspective view of a torsion bar according to the third aspect of the present invention.
  • Fig. 6 is a perspective view of a spool sub- assembly incorporating the torsion bar of Fig. 5.
  • Fig. 7 is an end view of the spool sub-assembly of Fig. 6, from one end.
  • Fig. 8 is an end view of the spool sub-assembly of Fig. 6 from the other end.
  • Fig. 9 is a cross-sectional view along line A-A of Fig. 7.
  • Fig. 10 is a perspective view of a torsion bar according to the fourth aspect of the present invention.
  • Fig. 11 is a side view of the torsion bar of Fig. 10.
  • Fig. 12 is a perspective view of a spool sub- assembly incorporating the torsion bar of Figs. 10 and 11. Detailed Description of the Invention
  • a spool 1 comprising a cylindrical plastic central body portion 11 and end wings 3, 4 which, in use, laterally constrain seat belt webbing 5 which is wound around the central body 2 on spool 1.
  • the spool is ormed as a single piece, for example by die-casting.
  • a metal, preferably steel, pin 6 is sewn into a loop 7 in one end of the webbing.
  • a slot 8 is formed in the cylindrical body portion 2 of the spool 1 and the pin 6 sits in this slot so as not to interfere with the generally smooth outer surface of the spool 1 as presented to the wound webbing .
  • the webbing 5 passes from the pin 6 through a channel 9 around the central axis of the spool and exits via the slot 8.
  • Channel 9 has an outer wall 10, which is configured so as to guide the webbing 5 around the channel and out of the slot without additional intervention from a production line operative. To this end the wall 10 is made smooth with a minimum of abrupt corners .
  • the outer part of the wall, which leads into the channel 9, follows a smooth arc with no discontinuities.
  • the channel 9 may subscribe a parabolic path and the angle subtended at the spool axis by the entry and exit parts of the channel is less than 180° and preferably about 90°.
  • the pin 6 has a diameter "D" larger than the width " " of channel 9 so that it is not pulled right through the channel.
  • the central section 11 of the spool 1, around which the webbing 5 coils, is a metal torsion bar in these embodiments.
  • the angle between the line of the webbing passing into the channel 9 and the line exiting is slightly greater than in Fig. 1 but is less than 180° and is about 90°.
  • Figs. 2 and 4 the whole spool can be seen more clearly including a geared end 13 of the torsion bar and a ratchet wheel 14, which is attached to one end of the spool 1.
  • Figs. 5 to 9 illustrate a torsion bar according to the third aspect of the invention.
  • the torsion bar shown generally as 50 comprises a cylindrical portion 51 which widens at one end to form a ratchet wheel engaging member 52, with a cut-out, or notched, outer periphery which engages ratchet wheel 53.
  • a spool coupling gear 54 and a spring drive coupling 55 At the other end of the cylindrical portion 51 of the torsion bar 50 is a spool coupling gear 54 and a spring drive coupling 55.
  • Fig. 6 the torsion bar 50 is shown assembled in a spool sub-assembly and to that effect a spool coupling right 65 is mounted on the spool coupling gear 54.
  • a spool sleeve 57 surrounds the torsion bar 50 axially and rests on a spool bearing 58 at the ratchet wheel end, and in a recess in the spool coupling right 56 at the spool coupling end where it engages the spool gear 54.
  • the spool sleeve 57 is a plastic, generally simple, rolled tubular sleeve with a narrow slot 59 for receiving and holding an end of the seat belt webbing. One end is coupled, as shown, to the torsion bar 50 via spool gear 54. It is much simpler and cheaper to construct than the traditional spool, which must be die-cast to withstand the load bearing requirements .
  • the torsion bar 50 might have a 9mm diameter and the wider end, ratchet wheel engaging portion 52, a diameter of 22 -25mm.
  • Figure 7 shows the spool sub-assembly of Fig. 6 from the spool engaging end showing the ratchet wheel 53 and the ratchet engaging part 52 at the distance end, and showing the spring drive coupling 55, and the spool drive coupling 54 and the near end.
  • the spool coupling right 56 is also shown.
  • Fig. 8 shows the spool sub-assembly of Fig. 6 from the ratchet engaging ends and shows the ratchet wheel 53 and the ratchet engaging part 52.
  • Fig. 9 is a cross-section of Fig. 7 along lines A-A and like parts are denoted by like references. It can be clearly seen that the spool sleeve 57 rests on spool bearing 58 at one end and co-operates with spool coupling 54 and coupling ring 56 to engage the torsion bar 50 at its other end.
  • Figs. 10, 11 and 12 illustrate a torsion bar according to the fourth aspect of the invention, which is a one-piece torsion bar 150 incorporating torsion bar body 151, a ratchet wheel portion 153, a spool coupling 154 and a spring coupling 155.
  • a bearing shoulder 158 is provided on which a spool sleeve can rest to form a spool sub-assembly (in the same way as illustrated in Figs. 5 to 9) .
  • the torsion bar 150 may be used with a traditional die cast aluminum spool 160 as shown in Fig. 12.
  • This spool has a main cylindrical body portion 161 and side plates or wings 162.
  • the entry and exit slots 163, 164 for seat belt webbing to be anchored in the spool are marked in Fig. 12 and are about 90° apart, as shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

L´invention concerne une bobine (1) pour dispositif de rappel de ceinture de sécurité, comprenant un élément cylindrique doté d'une partie centrale (2) cylindrique, et de deux plaques d'extrémité (3,4) situées au niveau des extrémités axialement opposées de ladite partie cylindrique. Un canal (9) formé dans la partie centrale cylindrique possède une paroi intérieure et une paroi extérieure, et définit un chemin de guidage de sangle de ceinture de sécurité. Ce chemin entoure sensiblement l'axe de bobine sur la longueur de la partie centrale de ladite bobine par formation d´un arc généralement lisse. Ledit sortie de bobine, et l´angle aigu sous-tendu au niveau de l´axe de la bobine par la partie entrée du chemin et la partie sortie du chemin mesure approximativement 90°. La bobine peut être creuse, une barre de torsion (11) formant la paroi intérieure du canal.
PCT/US2000/016779 1999-09-17 2000-06-15 Bobine pour dispositif de rappel de ceinture de sécurité Ceased WO2001021455A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10084688T DE10084688T1 (de) 1999-09-17 2000-06-15 Welle für eine Sicherheitsgurt-Aufrollvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9922108.7 1999-09-17
GB9922108A GB2354208B (en) 1999-09-17 1999-09-17 Retractor

Publications (1)

Publication Number Publication Date
WO2001021455A1 true WO2001021455A1 (fr) 2001-03-29

Family

ID=10861173

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2000/016780 Ceased WO2001021456A1 (fr) 1999-09-17 2000-06-15 Barre de torsion pour dispositif de rappel de ceinture de securite
PCT/US2000/016779 Ceased WO2001021455A1 (fr) 1999-09-17 2000-06-15 Bobine pour dispositif de rappel de ceinture de sécurité

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2000/016780 Ceased WO2001021456A1 (fr) 1999-09-17 2000-06-15 Barre de torsion pour dispositif de rappel de ceinture de securite

Country Status (4)

Country Link
US (1) US6336606B1 (fr)
DE (2) DE10084687B4 (fr)
GB (1) GB2354208B (fr)
WO (2) WO2001021456A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20111409U1 (de) 2001-07-10 2001-11-15 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Gurtspule

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001225719A (ja) 1999-12-08 2001-08-21 Takata Corp シートベルトリトラクタ
JP4514271B2 (ja) * 2000-02-23 2010-07-28 タカタ株式会社 シートベルトリトラクタ
JP4518447B2 (ja) * 2000-07-25 2010-08-04 タカタ株式会社 シートベルト巻取り装置
DE10113342C1 (de) * 2001-03-20 2002-06-13 Autoliv Dev Gurtbandbefestigung an einer Gurtaufrollerwelle
GB2376665B (en) * 2001-06-19 2003-05-28 Breed Automotive Tech Retractor spool
US8702778B2 (en) * 2005-10-14 2014-04-22 W. L. Gore & Associates, Inc. Device for deploying an implantable medical device
JP5276881B2 (ja) 2008-03-31 2013-08-28 芦森工業株式会社 シートベルト用リトラクタ
DE102009015296A1 (de) * 2009-03-18 2010-09-23 Illinois Tool Works Inc., Glenview Sicherheitsgurteinrichtung
DE102010036092B4 (de) * 2010-08-27 2017-10-12 Illinois Tool Works, Inc. Sicherheitsgurteinrichtung
DE102011010973A1 (de) * 2011-02-10 2012-08-16 Trw Automotive Gmbh Gurtaufroller für einen Fahrzeug-Sicherheitsgurt
DE102011110846A1 (de) 2011-08-23 2013-02-28 Trw Automotive Gmbh Gurtspule für Gurtaufroller
DE102011117052A1 (de) * 2011-10-27 2013-05-02 Trw Automotive Gmbh Gurtstraffer für ein Sicherheitsgurtsystem
DE102012018263A1 (de) * 2012-09-17 2014-03-20 Trw Automotive Gmbh Gurtspule
DE102013003388A1 (de) * 2013-03-01 2014-09-04 Trw Automotive Gmbh Gurtspule und Gurtspulenbaugruppe
DE102014115199A1 (de) 2014-10-19 2016-04-21 Franz Wier Kunststoff Gurtspulen und Gurtspulenbaugruppen
DE102016002102A1 (de) * 2016-02-24 2017-08-24 Trw Automotive Gmbh Gurtspule eines Gurtaufrollers für ein lnsassenrückhaltesystem
US10759381B2 (en) * 2018-08-20 2020-09-01 Ford Global Technologies, Llc Vehicle seat belt retractor
US11554749B2 (en) * 2020-01-23 2023-01-17 Ford Global Technologies, Llc Load-limiting seatbelt retractor
KR102352164B1 (ko) * 2020-04-10 2022-01-18 아우토리브 디벨롭먼트 아베 자동차의 시트벨트 고정장치 및 고정방법
JP7493483B2 (ja) * 2021-06-10 2024-05-31 株式会社東海理化電機製作所 バックル装置
TWI837736B (zh) * 2021-08-13 2024-04-01 宏霖工業股份有限公司 捲軸組件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556409A1 (de) * 1975-12-15 1977-06-23 Kolb Gmbh & Co Hans Gurtbandbefestigungsanordnung
US5722611A (en) * 1996-03-19 1998-03-03 Trw Occupant Restraint Systems Gmbh Belt retractor
EP0894681A1 (fr) * 1997-08-01 1999-02-03 TAKATA (EUROPE) VEHICLE SAFETY TECHNOLOGY GmbH Accrochage de sangle

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111085Y2 (fr) * 1979-10-16 1986-04-08
DE4314883A1 (de) * 1993-05-05 1994-11-10 Trw Repa Gmbh Sicherheitsgurtaufroller
JPH08133010A (ja) * 1994-11-10 1996-05-28 Nippon Seiko Kk シートベルト巻取装置
US6105894A (en) * 1995-04-14 2000-08-22 Autoliv Development Ab Belt roller with damped force limiter
DE29613044U1 (de) * 1995-11-09 1996-11-07 Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf Gurtaufroller für einen Fahrzeug-Sicherheitsgurt
DE19609524C2 (de) * 1996-03-11 2000-06-08 Autoliv Dev Gurtaufroller-Gurtstrammer-Kombination mit Kraftbegrenzer
US5967441A (en) * 1997-07-22 1999-10-19 Breed Automotive Technology, Inc. Seat belt retractor with torsion bar and rotation limit
DE19733787C1 (de) * 1997-08-05 1998-12-03 Daimler Benz Ag Gurtroller für ein Sicherheitsgurtsystem eines Personensitzes
DE19757373A1 (de) * 1997-12-22 1999-06-24 Takata Europ Gmbh Anordnung zum Aufrollen eines Gurtbandes
US5934596A (en) * 1998-01-16 1999-08-10 Breed Automative Technology, Inc. Automatic locking retractor with timing clutch mechanism
US5984223A (en) * 1998-06-05 1999-11-16 Takata Corporation Seat belt retractor and its spool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556409A1 (de) * 1975-12-15 1977-06-23 Kolb Gmbh & Co Hans Gurtbandbefestigungsanordnung
US5722611A (en) * 1996-03-19 1998-03-03 Trw Occupant Restraint Systems Gmbh Belt retractor
EP0894681A1 (fr) * 1997-08-01 1999-02-03 TAKATA (EUROPE) VEHICLE SAFETY TECHNOLOGY GmbH Accrochage de sangle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20111409U1 (de) 2001-07-10 2001-11-15 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Gurtspule
US6732966B2 (en) 2001-07-10 2004-05-11 Trw Occupant Restraint Systems Gmbh & Co. Kg Belt spool

Also Published As

Publication number Publication date
DE10084688T1 (de) 2002-06-20
WO2001021456A1 (fr) 2001-03-29
GB9922108D0 (en) 1999-11-17
GB2354208B (en) 2003-11-26
US6336606B1 (en) 2002-01-08
DE10084687T1 (de) 2002-06-20
GB2354208A (en) 2001-03-21
DE10084687B4 (de) 2006-04-13

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